_MEMFILL

The _MEMFILL statement converts a value to a specified type, then fills memory with that type including any non-whole remainder.

Syntax

_MEMFILL memoryBlock, memoryBlock.OFFSET, fillBytes, value [AS variableType]

The memoryBlock _MEM memory block is the block referenced to be filled.
memoryBlock.OFFSET is the starting offset of the above referenced memory block.
The fillBytes is the number of bytes to fill the memory block.
The value is the value to place in the memory block at the designated OFFSET position.
A literal or variable value can be optionally set AS a variable type appropriate for the memory block.

To clear previous data from a _MEMNEW memory block, use _MEMFILL with a value of 0.

Example: Filling array values quickly using FOR loops or a simple memory fill.

DIM a(100, 100) AS LONG DIM b(100, 100) AS LONG 'filling array a with value 13 FOR i1 = 0 TO 100 FOR i2 = 0 TO 100 a(i1, i2) = 13 NEXT NEXT 'filling array b with value 13 DIM mema AS _MEM mema = _MEM(b()) _MEMFILL mema, mema.OFFSET, mema.SIZE, 13 AS LONG _MEMFREE mema